Upstart is the leading AI lending marketplace partnering with banks and credit unions to expand access to affordable credit. By leveraging Upstart's AI marketplace, Upstart-powered banks and credit unions can have higher approval rates and lower loss rates across races, ages, and genders, while simultaneously delivering the exceptional digital-first lending experience their customers demand. More than 80% of borrowers are approved instantly, with zero documentation to upload. Upstart is a digital-first company, which means that most Upstarters live and work anywhere in the United States. However, we also have offices in San Mateo, California; Columbus, Ohio; and Austin, Texas. Most Upstarters join us because they connect with our mission of enabling access to effortless credit based on true risk. If you are energized by the impact you can make at Upstart, we’d love to hear from you! The Frontend Platform team champions frontend excellence at Upstart by empowering teams to engineer quality user experiences. We build tools and services that are used internally by the engineering, design and product teams. We are looking for an experienced Senior Frontend Platform Engineer to help shape the future of our engineering platform and empower product teams to deliver exceptional user experiences with speed, quality, and consistency. In this role, you will own and evolve the core frontend platform, frameworks, and developer tooling that power our web and mobile applications. You’ll collaborate closely with product engineers, infrastructure teams, and design systems partners to drive technical strategy, set standards, and solve cross-cutting challenges at scale.